Williams Comfort Products O-474A Adjustable Pin Spanner

Product Description

The WILLIAMS COMFORT PRODUCTS O-474A is an adjustable pin spanner wrench designed for tightening and loosening threaded collars, retaining rings, and spanner nuts across a range of sizes. The tool spans from 4.5 inches to 6.25 inches, making it well suited for service work that requires precise engagement with slotted or pinned fasteners. Trades professionals reach for a pin spanner when standard wrenches cannot engage the workpiece, particularly on cylindrical components with drilled pin holes. The O-474A weighs 1.103 pounds, keeping it light enough for overhead or confined-space work.

The O-474A is used wherever threaded ring nuts, bearing retainers, or spanner-style lock collars appear in mechanical and HVAC assemblies. Typical applications include servicing pump housings, motor shaft collars, and similar rotating equipment found in residential and light commercial settings. It is installed by HVAC technicians, plumbers, and general mechanical service professionals who require controlled torque on slotted fasteners without damaging surrounding components.

Key Features

• Adjustable range from 4.5 inches to 6.25 inches covers a wide variety of collar and ring nut sizes
• Pin-style engagement prevents slippage on slotted or drilled fasteners
• Lightweight at 1.103 pounds for ease of use in tight or overhead spaces
• Sold individually for targeted tooling additions without bulk purchase requirements

Compatibility

Designed as a general-purpose adjustable pin spanner wrench for use on threaded collars and retaining rings measuring between 4.5 inches and 6.25 inches in diameter.

Installation Notes

Pin spanner wrenches are used by licensed HVAC technicians, plumbers, and mechanical service professionals. Before servicing any assembly requiring a spanner wrench, de-energize electrical components and relieve system pressure per applicable safety procedures. Ensure the pins seat fully into the spanner holes before applying torque to avoid deforming the fastener. Follow equipment manufacturer torque guidance and applicable service codes when reassembling components.

Technical Specifications

• Adjustment Range: 4.5 inches to 6.25 inches
• Weight: 1.103 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 1
• UPC: 662459104151

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: O-474A